Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 12 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 12/31/2019   18:42:59   (  -0.05,-128.26) (  -0.10,-127.93)   36.49                80
 01/02/2020   18:30:48   (  -0.05,-128.29) (  -0.79,-124.99)  376.63                80
 01/03/2020   06:54:52   (   0.04,-128.34) (  -0.32,-130.18)  208.28                80
 01/05/2020   06:40:00   (   0.05,-128.37) (   0.31,-127.22)  131.37                80
 01/05/2020   19:03:54   (  -0.03,-128.34) (   0.81,-132.37)  458.20                80
 01/07/2020   06:27:48   (   0.05,-128.40) (   0.95,-124.26)  470.29                80
 01/07/2020   18:51:42   (  -0.04,-128.36) (   0.17,-129.42)  119.50                80
 01/09/2020   18:36:51   (  -0.04,-128.38) (  -0.47,-126.46)  218.44                80
 01/10/2020   07:00:54   (   0.03,-128.42) (  -0.63,-131.65)  367.06                80
 01/12/2020   06:48:41   (   0.03,-128.42) (  -0.05,-128.68)   30.01                80